G352C6

Will there be a Gas Guzzler Tax?

slief

I highly doubt it. Especially with CAFE regulations being imposed. I'm betting the MPG on the new Z06 will be within 2-3 miles per gallon of the standard C7. Super Charging is usually pretty good about keeping fuel economy reasonable.

In retrospect, the 2013 Z51 is rated at 16MPG city and 26 Highway where as the 2013 ZR1 was rated at 14MPG city and 21 Highway. Add in direct injection and potentially cylinder deactivation and I would expect the delta between the current base C7 and Z06 to be even narrower despite the huge power increase and the addition of the super charger. I'd bet the fuel efficiency of the new Z06 will be better than the outgoing Z06 which was pretty impressive for it's 500HP engine.

I'm looking forward to those kinds of details being disclosed. I'm sure we will all be pretty impressed.

One things for sure. The new Z06 will most certainly be the most fuel efficient 600+ HP gas powered production car ever produced!

OnPoint

Probably depends in large part what compression ratio the mill has. The primary reason the C6 Z gets better mileage than the C6 ZR is b/c of the conservatively lower compression ratio of the LS9.

If the DI allows with forged slugs a higher CR - i.e. something close to/over 10:1, then I expect the C7Z to outperform the C6 ZR on mpg.

All that said, I really hope they didn't spend much time worrying about/engineering this particular relatively low production model around the tax. I'd rather just have it be a thumper.

And I really hope they ditched AFM/cylinder deactivation and its associated steel torque tube.

427500

I agree

MikeyTX

We can only hope ..............

rcallen484

If it is like the C7 reveal last year at this time, DO NOT be expecting a lot of details immediately or you will be sorely disappointed. Let's just disavow everyone of that notion right now so as to minimize the harping on it afterwards.

SCM_Crash

I don't think AFM would be a problem at all, even if it makes the car heavier. With all that torque and power, along with all the other major performance improvements, I'm going to go out on a limb here and say that the C7Z isn't going to have any real competitors out there. The C7 Z51 already was giving the F12 a run for its money on the track. With an extra 160 HP and 190 FtLbs/tq, I think the C7Z would embarrass anything Ferrari can throw at it. And after a day at the track, it will still have enough gas to drive home. LOL

Vetteman Jack

Hopefully GM has been able to get the high HP/torque numbers without sacrificing much in the way of fuel economy. But in the grand scheme of things, I'd take performance and the possible need to tack on a gas guzzler tax over the car not being the most capable it can be.

The Clevite Kid

. . . go to the National Corvette Museum in April

DoctorV8

Gearing plays a huge role too. If they retain the gearing from the PDE ZR1, it will likely have a GGT regardless of CR.

OnPoint

I agree. Gearing can have a real impact. It seems like PDE - non-PDE shows a 1 - 2 mpg difference on the highway. Doesn't sound like much, and isn't much from an ownership/driving perspective. But it can have a real impact on GGT.

CR and gearing are probably the two biggies.

DoctorV8

Indeed. My C6 Z06 got about 26-27 mpg on the way home from BG. My ZR1 is lucky to get 20 if I'm babying it.....but it's sure a lot easier to pass people in 6th gear.....

Runs11s

No. I am betting absolutely not.